Q36. crylAb encodes a protein that controls the growth of
(a) Beetles
(b) Cotton bollworms
(c) Corn borers
(d) Flies

Question

FirstInTest · Accepted Answer

Correct answer: c. The *crylAb* gene is derived from the bacterium *Bacillus thuringiensis (Bt)* and encodes a specific Cry protein. This protein is known to be toxic to certain insect pests. Specifically, the Cry1Ab protein is highly effective against **corn borers**, which are lepidopteran pests that cause significant damage to maize (corn) crops. Other Bt genes, such as *crylAc* and *cryIIAb*, are effective against cotton bollworms (*Helicoverpa armigera*), another group of lepidopteran pests. The development of Bt-corn containing the *crylAb* gene is a key application of biotechnology in agriculture for pest resistance.

Related Questionsin Biology / Biotechnology

Practice More CUET UG Questions